Well, you could take the Trainspotting 2 teaser trailer that came out a week or so back, which had zero new footage, in fact it was intended purely to announce that they were going to start filming that day… So no, it wasn’t still images, but containing nothing at all from the new film has to be, in a way, worse than stills if you were judging trailers on a scale… (not that I have a beef with Trainspotting 2, looking forward to it, actually)

Teaser trailer scale:

_________no new footage/info at all__________stills_________pre vis__________looks bad_____looks okay ___
^
|
Ghostbusters (2016)